3103 Eger (1982 BB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3541833241 ± 2.00e+00
Semi-major axis (a)1.4039472551 AU ± 3.00e+00
Inclination (i)20.93071887° ± 4.00e+00
Long. of Asc. Node (Ω)129.73173744° ± 5.00e+00
Arg. of Perihelion (ω)254.10494834° ± 6.00e+00
Mean Anomaly (M)181.12184640° ± 8.33e-05
Mean Motion (n)0.5924969077°/day ± 1.90e+00
Perihelion dist (q)0.90669255 AU ± 3.41e+00
Aphelion dist (Q)1.90120196 AU ± 4.94e+00
Orbital Period1.66351296 yr ± 5.33e+00
NGA Modelr2
A24.86502687e-06 AU/d²
Physical Parameters
H (abs. magnitude)15.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.078006 AU
Observations Used7901
Radar Obs Used4
Gaia Obs Used108
Oppositions14
Arc Total1982-2017
First Observation Used1982-02-02
Last Observation Used2026-04-05
Observations (11858)
Date Type RA Dec Mag Band Observatory
2022-02-16 14:53:51 S 10 38 28.068 +29 06 56.27 V C57
2022-02-16 14:53:51 s 1 +130446.40 4 +321843.18 9200.0 C57
2022-02-16 15:03:51 S 10 38 27.389 +29 07 07.79 V C57
2022-02-16 15:03:51 s 1 +130126.19 3 +322195.83 1060.0 C57
2022-02-16 15:13:51 S 10 38 26.681 +29 07 23.38 V C57
2022-02-16 15:13:51 s 1 +129805.54 8 +322547.39 1410.0 C57
2022-02-16 15:23:51 S 10 38 25.896 +29 07 35.47 V C57
2022-02-16 15:23:51 s 1 +129484.47 1 +322897.87 260.0 C57
2022-02-16 15:33:51 S 10 38 25.181 +29 07 49.12 V C57
2022-02-16 15:33:51 s 1 +129162.96 3 +323247.26 7630.0 C57
2022-02-16 15:43:51 S 10 38 24.518 +29 08 03.12 V C57
2022-02-16 15:43:51 s 1 +128841.02 6 +323595.57 3510.0 C57
2022-02-16 15:53:51 S 10 38 23.657 +29 08 16.44 V C57
2022-02-16 15:53:51 s 1 +128518.66 2 +323942.80 7920.0 C57
2022-02-16 16:03:51 S 10 38 22.956 +29 08 30.66 V C57
2022-02-16 16:03:51 s 1 +128195.87 2 +324288.94 860.0 C57
2022-02-16 16:13:51 S 10 38 22.284 +29 08 43.26 V C57
2022-02-16 16:13:51 s 1 +127872.65 9 +324634.00 2340.0 C57
2022-02-16 16:23:51 S 10 38 21.487 +29 08 56.00 V C57
2022-02-16 16:23:51 s 1 +127549.02 4 +324977.98 2370.0 C57
2022-02-16 16:33:51 S 10 38 20.736 +29 09 11.66 V C57
2022-02-16 16:33:51 s 1 +127224.96 8 +325320.87 950.0 C57
2022-02-16 16:43:51 S 10 38 20.040 +29 09 23.58 V C57
2022-02-16 16:43:51 s 1 +126900.49 4 +325662.69 8100.0 C57
2022-02-16 16:53:51 S 10 38 19.294 +29 09 37.12 V C57
2022-02-16 16:53:51 s 1 +126575.60 3 +326003.42 3810.0 C57
2022-02-16 17:03:51 S 10 38 18.528 +29 09 51.62 V C57
2022-02-16 17:03:51 s 1 +126250.29 7 +326343.08 8100.0 C57
2022-02-16 17:13:51 S 10 38 17.760 +29 10 03.68 V C57
2022-02-16 17:13:51 s 1 +125924.57 8 +326681.65 980.0 C57
2022-02-16 17:23:51 S 10 38 17.098 +29 10 17.94 V C57
2022-02-16 17:23:51 s 1 +125598.44 6 +327019.15 2450.0 C57
2022-02-16 17:33:51 S 10 38 16.306 +29 10 31.33 V C57
2022-02-16 17:33:51 s 1 +125271.90 5 +327355.57 2510.0 C57
2022-02-16 17:43:51 S 10 38 15.557 +29 10 44.15 V C57
2022-02-16 17:43:51 s 1 +124944.95 5 +327690.91 1180.0 C57
2022-02-16 17:53:51 S 10 38 14.928 +29 10 58.04 V C57
2022-02-16 17:53:51 s 1 +124617.59 9 +328025.17 8460.0 C57
2022-02-16 18:03:51 S 10 38 14.119 +29 11 11.04 V C57
2022-02-16 18:03:51 s 1 +124289.83 7 +328358.35 4370.0 C57
2022-02-16 18:13:51 S 10 38 13.397 +29 11 25.40 V C57
2022-02-16 18:13:51 s 1 +123961.67 2 +328690.46 8900.0 C57
2022-02-16 18:23:51 S 10 38 12.674 +29 11 38.54 V C57
2022-02-16 18:23:51 s 1 +123633.10 6 +329021.49 2060.0 C57
2022-02-16 18:33:51 S 10 38 11.880 +29 11 51.68 V C57
2022-02-16 18:33:51 s 1 +123304.13 9 +329351.45 3870.0 C57
2022-02-16 18:43:51 S 10 38 11.182 +29 12 05.22 V C57
2022-02-16 18:43:51 s 1 +122974.77 4 +329680.33 4320.0 C57
2022-02-16 18:53:51 S 10 38 10.385 +29 12 18.47 V C57
2022-02-16 18:53:51 s 1 +122645.01 2 +330008.14 3430.0 C57
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-07-18 07:50:00 202602 6 Hz 2380 -1 -1
1986-07-18.326389 20260200 600 Hz 2380 251 251
1996-07-29 09:10:00 469654 5 Hz 8510 -14 -14
1996-07-29 13:00:00 133166634 10 us 8510 -14 -14
1996-07-29.381944 46965400 500 Hz 8510 253 253
1996-07-29.541667 13316663400 10000 us 8510 253 253
1996-07-30 10:50:00 410012.2 5 Hz 8510 -14 -14
1996-07-30.451389 41001220 500 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)